572112

Hitachi WH12DM Manual

10
Zoom out
Zoom in
Previous page
1/74
Next page
English
9
2. Check the rotational direction
The bit rotates clockwise (viewed from the rear
side) by pushing the R-side of the push button.
The L-side of the push button is pushed to turn the
bit counterclockwise. (See Fig. 11) (The
L
and
R
marks are provided on the body.)
CAUTION
The push button can not be switched while the
impact driver is turning. To switch the push button,
stop the impact driver, then set the push button.
3. Switch operation
⅜ When the trigger switch is depressed, the tool
rotates. When the trigger is released, the tool stops.
⅜ The rotational speed can be controlled by varying
the amount that the trigger switch is pulled. Speed
is low when the trigger switch is pulled slightly and
increases as the trigger switch is pulled more.
4. Tightening and loosening screws
Install the bit that matches the screw, line up the
bit in the grooves of the head of the screw, then
tighten it.
Push the impact driver just enough to keep the bit
fitting the head of the screw.
CAUTION
Applying the impact driver for too long tightens the
screw too much and can break it.
Tightening a screw with the impact driver at an
angle to that screw can damage the head of the
screw and the proper force will not be transmitted
to the screw.
Tighten with this impact driver lined up straight
with the screw.
5. Number of screws tightenings possible
Please refer to the table below for the number of
screw tightened possible with one charge.
For WH12DM (EB1230HL)
For WH9DM (EB930H)
These values may vary slightly, according to
surrounding temperature and battery characteristics.
NOTE
The use of the battery EB1230HL and EB930H in
a cold condition (below 0 degree Centigrade) can
sometimes result in the weakened tightening torque
and reduced amount of work. This, however, is a
temporary phenomenon, and returns to normal when
the battery warms up.
OPERATIONAL CAUTIONS
1. Resting the unit after continuous work
After use for continuous bolt-tightening work, rest
the unit for 15 minutes or so when replacing the
battery. The temperature of the motor, switch, etc.,
will rise if the work is started again immediately
after battery replacement, eventually resulting in
burnout.
NOTE:
Do not touch the hammer case, as it gets very hot
during continuous work.
2. Cautions on use of the speed control switch
This switch has a built-in, electronic circuit which
steplessly varies the rotation speed. Consequently,
when the switch trigger is pulled only slightly (low
speed rotation) and the motor is stopped while
continuously driving in screws, the components of
the electronic circuit parts may overheat and be
damaged.
3. Tightening torque
Refer to Figs. 16 and 17 for the tightening torque
of bolts (according to size), under the conditions
shown in Fig. 18. Please use this example as a
general reference, as tightening torque will vary
according to tightening conditions.
NOTE
⅜ If a long striking time is used, screws will be strongly
tightened. This may cause the screw to break, or
may damage the tip of the bit.
⅜ If the unit is held at an angle to the screw being
tightened, the head of the screw may be damaged,
or the specified torque may not be transmitted to
the screw. Always keep the unit and the screw
being tightened in a straight line.
4. Use a tightening time suitable for the screw
The appropriate torque for a screw differs according
to the material and size of the screw, and the
material being screwed etc., so please use a
tightening time suitable for the screw. In particular,
if a long tightening time is used in the case of
screws smaller than M8, there is a danger of the
screw breaking, so please confirm the tightening
time and the tightening torque beforehand.
Screw used No. of tightenings
Wood screw ø4 x 50
Approx. 860
(Soft wood)
Machine screw M8 x 16 Approx. 1920
Screw used No. of tightenings
Wood screw ø4 x 50
Approx. 580
(Soft wood)
Machine screw M8 x 16 Approx. 1540
… 10 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Hitachi WH12DM at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Hitachi WH12DM in the language / languages: English, German, Dutch, French, Italian, Portuguese, Spanish as an attachment in your email.

The manual is 1,16 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info